:root {
  --bg: #0f172a;
  --fg: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-fg: #0f172a;
  --card: #1e293b;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  min-height: 100vh;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
}

.hero {
  text-align: center;
}

.logo {
  width: 96px;
  height: 96px;
  display: block;
  margin: 0 auto 1rem;
}

h1 {
  font-size: 2.25rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.cta {
  background: var(--card);
  border-radius: 16px;
  padding: 2rem;
  width: 100%;
  text-align: center;
}

.cta h2 {
  margin: 0 0 0.75rem;
  font-size: 1.4rem;
}

.cta p {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.downloads {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: var(--card);
  color: var(--fg);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 500;
  transition: transform 0.12s ease, background 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: transparent;
}

.fallback {
  margin-top: 1.5rem;
  text-align: left;
  color: var(--muted);
}

.fallback summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 500;
  text-align: center;
}

.fallback p {
  margin: 0.75rem 0;
}

.foot {
  color: var(--muted);
  font-size: 0.85rem;
}